Are Yelp ads worth paying for? How to figure it out

It is a very fair question but a hard one to answer since Yelp doesn’t make it easy for a business owner to understand what happens as a result of the ads. They only show you impressions and clicks but nothing else. This is kind of surprising given the amount of free data they provide with a listing. (This may be changing as Yelp this week shared the results of an attribution trial